SHA-256 & SHA-1 Text Hash Generator Online

Generate a SHA-256 or legacy SHA-1 digest for text with your browser's Web Crypto API. This tool does not hash files.

This tool processes its main input in your browser and does not send it to an external API. Fonts and interface assets may load from external providers.

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SHA-256 & SHA-1 Text Hash Generator Online

This text hash generator calculates a SHA-256 or legacy SHA-1 digest with the browser's Web Crypto API. Enter text and compare its complete digest with a value produced elsewhere.

This page does not read or hash files, and it does not verify publishers. SHA-1 is included for compatibility; use SHA-256 for modern checksums. Neither algorithm is encryption or a password-storage method.

How to use it

  1. Enter the text to hash.
  2. Choose SHA-256 or legacy SHA-1; generation runs automatically as you type.
  3. Copy the complete digest and compare it with a trusted expected text digest.

Example

Input: hello

Output: SHA-256: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

Who is it for?

  • People checking download integrity
  • Developers handling file releases
  • Students learning cryptographic digests

Privacy and limitations

The text digest is calculated in this browser and is not sent to a hash API. Do not treat this page as a password-storage system.

SHA-256 Hashes: Checksums, File Integrity and Signatures

Frequently asked questions

Can this tool hash a downloaded file?

No. This page accepts text only. Use a trusted file-hashing utility and verify its digest against a value from the publisher's official channel.

Can I reverse a hash?

Cryptographic hashes are designed to be one-way. Guessable inputs may still be found through dictionaries or brute force.

Should I store passwords with SHA-256?

Usually not. Password storage needs purpose-built, salted and deliberately slow password-hashing algorithms.

Why is SHA-1 labeled legacy?

SHA-1 is retained for compatibility with older systems. Use SHA-256 for current integrity checks; neither hash authenticates a publisher on its own.